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Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.最新文献

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Wave field decomposition of multi-offset GPR data based on the one way wave equation 基于单向波动方程的多偏距探地雷达波场分解
Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005. Pub Date : 2005-05-02 DOI: 10.1109/AGPR.2005.1487870
E. Slob
{"title":"Wave field decomposition of multi-offset GPR data based on the one way wave equation","authors":"E. Slob","doi":"10.1109/AGPR.2005.1487870","DOIUrl":"https://doi.org/10.1109/AGPR.2005.1487870","url":null,"abstract":"","PeriodicalId":272364,"journal":{"name":"Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117253717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Linear and non linear tomographic approaches for imaging dielectric targets embedded in an inhomogeneous medium 嵌入在非均匀介质中的介电目标的线性和非线性层析成像方法
Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005. Pub Date : 2005-05-02 DOI: 10.1109/AGPR.2005.1487871
F. Soldovicri, I. Catapano, L. Crocco, R. Persico
{"title":"Linear and non linear tomographic approaches for imaging dielectric targets embedded in an inhomogeneous medium","authors":"F. Soldovicri, I. Catapano, L. Crocco, R. Persico","doi":"10.1109/AGPR.2005.1487871","DOIUrl":"https://doi.org/10.1109/AGPR.2005.1487871","url":null,"abstract":"In this paper we compare two different tomographic approaches for imaging dielectric objects embedded in an inhomogeneous scenario. The first one exploits the Born Approximation (BA) and belongs to the class of linearized methods, while the second one is a non-linear iterative approach. As far as the first one is concerned, only qualitative information can be obtained, but these can be acquired in quasi real time, even for large investigated domains, provided that some off-line computation is performed. On the other hand, the non-linear inversion technique can give more detailed information, but in any case it involves a larger computational burden, owing to its iterative nature. Numerical examples assess robustness of both the approaches against noise on data.","PeriodicalId":272364,"journal":{"name":"Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117036774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clutter reduction and detection of landmine objects in ground penetrating radar data using singular value decomposition (SVD) 基于奇异值分解(SVD)的探地雷达数据杂波抑制与地雷物检测
Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005. Pub Date : 2005-05-02 DOI: 10.1109/AGPR.2005.1487840
F. Abujarad, G. Nadim, A. Omar
{"title":"Clutter reduction and detection of landmine objects in ground penetrating radar data using singular value decomposition (SVD)","authors":"F. Abujarad, G. Nadim, A. Omar","doi":"10.1109/AGPR.2005.1487840","DOIUrl":"https://doi.org/10.1109/AGPR.2005.1487840","url":null,"abstract":"This paper demonstrates that the Singular Value Decomposition (SVD) B an efficient method for the reduction of clutter in Stepped-Frequency Ground Penetrating Radar (SFGPR) data. In this contribution, two algorithms have been applied for clutter reduction. In the first algorithm, SVD has been applied after mean subtraction and the target has been estimated, The suggestion of applying a threshold and excogitate a new formula to calculate the threshold has been presented on the first algorithm. Signal-to-Noise ratio (SNR) has been analyzed. In the second algorithm, a background estimate has been done directly using SVD. The technique has been experimentally validated using PMN landmine at different depths.","PeriodicalId":272364,"journal":{"name":"Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130093676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 61
Affordable gpr technology 经济实惠的探地雷达技术
Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005. Pub Date : 2005-05-02 DOI: 10.1109/AGPR.2005.1487836
D. Daniels
{"title":"Affordable gpr technology","authors":"D. Daniels","doi":"10.1109/AGPR.2005.1487836","DOIUrl":"https://doi.org/10.1109/AGPR.2005.1487836","url":null,"abstract":"","PeriodicalId":272364,"journal":{"name":"Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133972238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A linear inverse scattering algorithm for the multi-monostatic GPR configuration 多单站GPR配置的线性逆散射算法
Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005. Pub Date : 2005-05-02 DOI: 10.1109/AGPR.2005.1487869
F. Soldovieri, R. Persico, G. Leone
{"title":"A linear inverse scattering algorithm for the multi-monostatic GPR configuration","authors":"F. Soldovieri, R. Persico, G. Leone","doi":"10.1109/AGPR.2005.1487869","DOIUrl":"https://doi.org/10.1109/AGPR.2005.1487869","url":null,"abstract":"Absfracf-The paper deals with the application of a frequency domain microwave tomography for a multi-monostatic configuration. First we formulate the inverse problem as a linear one by the adoption of the Born Approximation. Then, the reconstruction capabilities of the solution algorithm are investigated and an optimal frequency step to be adopted for the reconstruction is determined, Finally, inversion results are presented when synthetic data are obtained from time domain simulations by Fourier transform.","PeriodicalId":272364,"journal":{"name":"Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132655898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
On the attenuation factor measurements of glass beads/magnetite mixtures and on the effective frequency evaluation by time domain reflectometry 玻璃微珠/磁铁矿混合物衰减系数测量及时域反射法有效频率评估
Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005. Pub Date : 2005-05-02 DOI: 10.1109/AGPR.2005.1487853
E. Mattei, A. De Santis, E. Pettinelli, A. di Matteo, G. Vannaroni
{"title":"On the attenuation factor measurements of glass beads/magnetite mixtures and on the effective frequency evaluation by time domain reflectometry","authors":"E. Mattei, A. De Santis, E. Pettinelli, A. di Matteo, G. Vannaroni","doi":"10.1109/AGPR.2005.1487853","DOIUrl":"https://doi.org/10.1109/AGPR.2005.1487853","url":null,"abstract":"AhtracrSamples with different percentages (5-25%) of magnetite and different grains size ranges are analyzed by Time Domain Reflectometry (TDR) for deriving the bandwidth and the attenuation factor a . The spectral content of the signal changes as function of the material investigated. Indeed, the bandwidths narrow with the increasing of magnetite volume content of the sample. The spectral information coming from the bandwidth and the attenuations values were used to evaluate the effective frequency of the TDR signal. The attenuation factor values are obtained by. two different methods: i) wave amplitude at the second reflection, ii) electromagnetic parameters (evaluated with L-C-R meters) and TDR band widths. The two methods provide consistent a values within the experimental uncertainties. The agreement supports the possibility of measuring the attenuation factor from the second TDR reflection.","PeriodicalId":272364,"journal":{"name":"Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124869271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Steam injection pilot study in a contaminated fractured limestone (Maine, USA): modeling and analysis of borehole radar reflection data 美国缅因州受污染裂缝灰岩注汽试点研究:井眼雷达反射数据建模与分析
Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005. Pub Date : 2005-05-02 DOI: 10.1109/AGPR.2005.1487846
C. Grégoire, J. Lane, P. Joesten
{"title":"Steam injection pilot study in a contaminated fractured limestone (Maine, USA): modeling and analysis of borehole radar reflection data","authors":"C. Grégoire, J. Lane, P. Joesten","doi":"10.1109/AGPR.2005.1487846","DOIUrl":"https://doi.org/10.1109/AGPR.2005.1487846","url":null,"abstract":"AbslructSteam-enhanced remediation (SER) has been successfully used to remove DNAPL and LNAPL contaminants in porous media. Between August and November 2002, SER was tested in fractured limestone at the former Loring Air Force Base, in Maine, USA. During the SER investigation, the U.S. Geological Survey conducted a series of borehole radar surveys to evaluate the effectiveness of radar methods for monitoring the movement of steam and heat through the fractured limestone. The data were collected before steam injection, 10 days after the beginning of injection, and at the end of injection. In this paper, reflection-mode borehole radar data from wells JBW-7816 and JBW-7817A are presented and discussed. Theoretical modeling was performed to predict the variation of fracture reflectivity owed to heating, to show displacement of water and to assess the effect of SER at the site. Analysis of the radar profile data indicates some variations resulting from heating (increase of continuity of reflectors, attenuation of deeper reflections) but no substantial variation of traveltimes. Spectral content analysis of several individual reflections surrounding the boreholes was used to investigate the replacement of water by steam in the fractures. Observed decrease in radar reflectivity was too small to be explained by a replacement of water by steam, except for two high-amplitude reflectors, which disappeared near the end of the injection; moreover, no change of polarity, consistent with steam replacing water, was observed. The decrease of amplitude was greater for reflectors near well JBW-7817A and is explained by a greater heating around this well. John W. Lane Jr., Peter K. Joesten U.S. Geological Survey, Branch of Geophysics 11 Sherman Place, Unit 5015, Storrs Mansfield, CT 06269, United States jwlane@usgs.gov , pjoesten@usgs.gov","PeriodicalId":272364,"journal":{"name":"Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115487096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis and calibration of gpr shielded antennas gpr屏蔽天线的分析与标定
Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005. Pub Date : 2005-05-02 DOI: 10.1109/AGPR.2005.1487878
M. Pereira, F. Rial, H. Lorenzo, P. Arias
{"title":"Analysis and calibration of gpr shielded antennas","authors":"M. Pereira, F. Rial, H. Lorenzo, P. Arias","doi":"10.1109/AGPR.2005.1487878","DOIUrl":"https://doi.org/10.1109/AGPR.2005.1487878","url":null,"abstract":"Abslruct-A key factor for the accurate interpretation of surface-penetrating radar records is to know as much as possible about the transmission features of our antennas. The characteristics o f the detected reflections (trace time zero, duration and shape of the reflected pulse, minimum overlap distance between direct signal and first reflection, etc) depend on the issued signal properties. Since these characteristics can vary for the different GPR equipments available, in this paper we present the results of various experiments to analyze and calibrate 500,800 and 1000 MHz shielded antennas","PeriodicalId":272364,"journal":{"name":"Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131228799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Background subtraction in the frequency domain for focusing ground-penetrating radar data 探地雷达数据聚焦的频域背景减法
Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005. Pub Date : 2005-05-02 DOI: 10.1109/AGPR.2005.1487838
O. Lopera, S. Lambot, N. Milisavljevic, B. Scheers, I. van den Bosch
{"title":"Background subtraction in the frequency domain for focusing ground-penetrating radar data","authors":"O. Lopera, S. Lambot, N. Milisavljevic, B. Scheers, I. van den Bosch","doi":"10.1109/AGPR.2005.1487838","DOIUrl":"https://doi.org/10.1109/AGPR.2005.1487838","url":null,"abstract":"0, Lopera*+, S. Lambott, N. Milisavljevic*, B. Scheers* and 1. van den Bosch*§ 'Royal Military Academy, Signal and Image Centre AV. de la renaissance 30, 10oO Brussels, Belgium olopera@elec.rma.ac.be, nada@elec.rma.ac.be, scheers@tele.rma.ac.be b e p t . of Electrical and Electronic Engineering, University of Los Andes Kra 1 Este l8A-10, Ed W P4, Bogota, Colombia olopera@uniandes.edu.co $Department of Geotechnology, Delft University of Technology Mijnbouwstmat 120,2628 RX Delft, The Netherlands s.lambot@citg.tudelf.nl §Microwaves Laboratory, Catholic University of Louvah Place du Levant 3, I348 Louvah-la-Neuve, Belgium vandenbosch @emic.ucl.ac.be","PeriodicalId":272364,"journal":{"name":"Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.","volume":"936 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132353064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Effective permittivity of layered samples 层状样品的有效介电常数
Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005. Pub Date : 2005-05-02 DOI: 10.1109/AGPR.2005.1487851
A. Gorriti, E. Slob
{"title":"Effective permittivity of layered samples","authors":"A. Gorriti, E. Slob","doi":"10.1109/AGPR.2005.1487851","DOIUrl":"https://doi.org/10.1109/AGPR.2005.1487851","url":null,"abstract":"","PeriodicalId":272364,"journal":{"name":"Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, 2005. IWAGPR 2005.","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115038403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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